Safety vulnerability ID: 37815
The information on this page was manually curated by our Cybersecurity Intelligence Team.
Django 1.11.28, 2.2.10 and 3.0.3 include a fix for CVE-2020-7471: SQL Injection if untrusted data is used as a StringAgg delimiter (e.g., in Django applications that offer downloads of data as a series of rows with a user-specified column delimiter). By passing a suitably crafted delimiter to a contrib.postgres.aggregates.StringAgg instance, it was possible to break escaping and inject malicious SQL.
Latest version: 5.2.7
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*February 3, 2020*
Django 3.0.3 fixes a security issue and several bugs in 3.0.2.
CVE-2020-7471: Potential SQL injection via ``StringAgg(delimiter)``
===================================================================
:class:`~django.contrib.postgres.aggregates.StringAgg` aggregation function was
subject to SQL injection, using a suitably crafted ``delimiter``.
Bugfixes
========
* Fixed a regression in Django 3.0 that caused a crash when subtracting
``DateField``, ``DateTimeField``, or ``TimeField`` from a ``Subquery()``
annotation (:ticket:`31133`).
* Fixed a regression in Django 3.0 where ``QuerySet.values()`` and
``values_list()`` crashed if a queryset contained an aggregation and
``Exists()`` annotation (:ticket:`31136`).
* Relaxed the system check added in Django 3.0 to reallow use of a sublanguage
in the :setting:`LANGUAGE_CODE` setting, when a base language is available in
Django but the sublanguage is not (:ticket:`31141`).
* Added support for using enumeration types ``TextChoices``,
``IntegerChoices``, and ``Choices`` in templates (:ticket:`31154`).
* Fixed a system check to ensure the ``max_length`` attribute fits the longest
choice, when a named group contains only non-string values (:ticket:`31155`).
* Fixed a regression in Django 2.2 that caused a crash of
:class:`~django.contrib.postgres.aggregates.ArrayAgg` and
:class:`~django.contrib.postgres.aggregates.StringAgg` with ``filter``
argument when used in a ``Subquery`` (:ticket:`31097`).
* Fixed a regression in Django 2.2.7 that caused
:meth:`~django.db.models.Model.get_FOO_display` to work incorrectly when
overriding inherited choices (:ticket:`31124`).
* Fixed a regression in Django 3.0 that caused a crash of
``QuerySet.prefetch_related()`` for ``GenericForeignKey`` with a custom
``ContentType`` foreign key (:ticket:`31190`).
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